import java.util.Arrays;

import java.util.Arrays;
public class Test20230809_4 {
    public static void main(String[] args){
        int [] a = {1,2,3};
        for(int i = 0 ;i<a.length ;i++){
            a[i]=a[i]*2;
        }
        String A = Arrays.toString(a);
        System.out.println(A);
    }
}
